1123221013231 has 8 divisors (see below), whose sum is σ = 1134543110544. Its totient is φ = 1111902859200.

The previous prime is 1123221013223. The next prime is 1123221013261. The reversal of 1123221013231 is 1323101223211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1123221013231 - 2³ = 1123221013223 is a prime.

It is a super-2 number, since 2×1123221013231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123221013261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411585 + ... + 1554298.

It is an arithmetic number, because the mean of its divisors is an integer number (141817888818).

Almost surely, 2^{1123221013231} is an apocalyptic number.

1123221013231 is a deficient number, since it is larger than the sum of its proper divisors (11322097313).

1123221013231 is a wasteful number, since it uses less digits than its factorization.

1123221013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971641.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1123221013231 its reverse (1323101223211), we get a palindrome (2446322236442).

The spelling of 1123221013231 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, thirteen thousand, two hundred thirty-one".